IMO ISO 5658-2 Spread Of Flame Tester ASTM E 1317 For Building Materials

ISO 5658-2 Spread Of Flame Tester Product Introduction:

This flame spread test system is designed in strict accordance with ISO 5658-2 international standard, and is compatible with IMO FTP Code A.653 (16) ship material fire protection specification and ASTM E1317 American material testing standard. It is specially used to evaluate the lateral flame propagation characteristics of building and industrial materials. By quantifying key parameters such as flame spread rate and critical thermal radiation flux, it provides a scientific basis for the classification of fire protection grades and optimization of flame retardant properties of materials.

During the test, the high-precision gas radiation plate generates a calibrated heat flux field (calibrated by an imported heat flux meter), and cooperates with the controllable mixed gas ignition system to perform non-contact ignition of the vertically placed sample. The combustible gas released after the sample is heated is ignited under the standard radiation intensity, and the system automatically records the following core data:
Ignition time (TTI): the time required for the volatile gas on the material surface to reach the ignition point;
Flame front propagation trajectory: real-time tracking of the horizontal flame spread distance and time relationship through the calibration scale;
Self-extinguishing characteristics: flame extinction time and residual combustion behavior analysis
Heat release parameters: including critical ignition heat flux (CHF), sustained combustion heat flux (SHF), total heat release (THR) and average heat release rate

ISO 5658-2 Spread Of Flame Tester Standards:

*ISO 5658-2: Reaction Experiments to Fire – Flame Propagation Part 2: Degree of flame spread on the sides of building products in an upright layout.

*IMO FTP Code Resolution A. 653(16): Recommendations for flammability test procedures for bulkheads, ceilings, deck materials

*ASTM E 1317: Standard Test Method for Flammability of Ship Surface Coatings *GBT28752-2012 Test method for lateral spread of flame on vertical surface

ISO 5658-2 Spread Of Flame Tester Technical Specification:

ISO 5658-2 Spread Of Flame Tester features:

•The box is made of stainless steel, beautiful and corrosion-resistant; easy to clean; main frame: composed of two independent parts: the burner frame and the sample support frame. The two parts are connected with bolts, and there are bolts for flexible mechanical adjustment.

• Ignition source: radiant panel and propane blowtorch imported from the United States. Precise control of flame height

•Burner, (200±10) mm long double-hole ceramic tube

• Cylinder-type pilot burner supports IMO standard flame automatic impact test

•Double-layer grid and magnifying lens allow users to observe flame spread

•Radiant panel temperature controller: prevents the flame from turning to the back of the heat sink, checks the internal temperature of the heat sink, and

• Flow controller allows easy testing of methane content while testing critical heat flow of gas

•Gas supply: Equipped with pressure reducing valve, zero pressure valve, tempering valve, solenoid valve and mixer to deliver the mixed air and gas to the radiant panel.

•Provide multi-hole calibration plates and sliding heat flow meter moving tracks to detect whether the thermal radiation flux meets standard requirements

• Equipped with an angle-adjustable observation mirror (750mm×120mm). During the test, the flame spread rate can be observed through the glass mirror and sample rake, and can be automatically recorded through the foot switch.

•Sample chimney, 1, equipped with gas and chimney metal compensation thermocouples.

• Safety explosion-proof, check valves, gas shut-off solenoid valves in all radiant panel combustion control systems prevent gas backflow • Cameras can observe and save the test process conditions in a program

• Measure the heat flow status of the radiant panel within a 50mm interval

• Data acquisition system stores images of flame spread length and combustion characteristics

• 19" analysis rack can measure flame spread rate, critical flow rate, heat release rate

• Radiant panel burner system fully automated with spark ignition and safety lock; all control systems are explosion proof

• IMO program makes all calibrations, tests, test results printing (IMO, ISO) easier

•Siemens or Mitsubishi PLC control system.

Test Result:

• Heat for sustained burning (MJ/m2)
- It is gained by multiplying time, which ranges from the initial exposure of test object to arrival of flame-tip in each point, by radiant heat flow penetrated against nonflammable calibration panel at the same point.
• Average heat for sustained burning (MJ/m2)
- It is an average of characteristic values measured in individual positions by continuous sustained heat. The characteristic value is measured in a continuous position at an interval of 50 mm from the initial 1500mm to the final position or 400 mm, whichever is lower.
• Heat for ignition (MJ/m2)
- It is gained by multiplying time, which ranges from the initial exposure of test object to arrival of flame-tip at a point of 150 mm, by heat flow of this point. (However, heat flow is gained by pre-calibration of test equipment.)
• Critical flux at extinguishment (kW/m2)
- It means heat flux in the location where flame spreads to the farthest distance from the centerline of the combusting test object. The heat flow is gained by performing a calibration test of a tester using calibration panels.
• Total heat release (MJ)
- It means total heat release during the test period.
• Peak heat release rate (kW)
- It means the peak heat release rate during the test period.